Unique Property Reference Numbers

UPRN Lookup

Find the UPRN for any property in England, Wales, or Scotland. A UPRN (Unique Property Reference Number) is the permanent official identifier assigned by Ordnance Survey to every addressable location in Great Britain.

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What is a UPRN?

A Unique Property Reference Number (UPRN) is a permanent numerical identifier — up to 12 digits — assigned to every addressable location in Great Britain by Ordnance Survey. It is used across government, utilities, emergency services, and the property industry as a master key to link data about a specific property.

UPRNs were made Open Data in 2020, meaning they are free to use, share, and build upon under the Open Government Licence.

Property Passport UK covers 19.35 million properties across England and Wales, each uniquely identified by UPRN and linked to EPC, HM Land Registry, and flood risk datasets.

Who uses UPRN data?

Buyers & Sellers

Verify the exact property identity before exchanging contracts — no address ambiguity.

Conveyancers

Cross-reference UPRN against Land Registry title numbers to confirm title coverage.

Property Agents

Use UPRN to pull official EPC, flood risk, and sold price data for any listing.

Local Authorities

UPRN is the standard identifier for planning, building control, and licensing records.

Developers & PropTech

Link datasets from multiple government sources using UPRN as the master key.

Surveyors

Confirm property details and pull official records before and during survey.

Data linked to every UPRN on PPUK

  • Full address and geolocation (Ordnance Survey)
  • EPC energy rating (A–G) and certificate history
  • Sold price history from HM Land Registry
  • Title tenure (freehold / leasehold)
  • Flood risk zone from the Environment Agency
  • Property Passport Completion Score

Frequently Asked Questions

What is a UPRN?

A UPRN (Unique Property Reference Number) is a permanent numerical identifier assigned to every addressable location in Great Britain by Ordnance Survey. It is up to 12 digits long and remains attached to a property throughout its lifetime, even if the address or ownership changes. UPRNs are used by local authorities, central government, emergency services, and utilities to uniquely identify properties.

How do I find the UPRN for a property?

Search for any property on Property Passport UK by entering the postcode or full address. Each property listing displays its UPRN prominently. You can also browse by postcode area or district to find UPRNs for all properties in a given area.

Who assigns UPRNs?

UPRNs are assigned by Ordnance Survey as part of the AddressBase product suite. Local authorities submit new addresses to their National Land & Property Gazetteer (NLPG), which feeds into the national AddressBase dataset. Ordnance Survey then assigns and maintains the UPRN for each entry.

What data is linked to a UPRN?

A UPRN acts as a master key linking multiple datasets: EPC certificates (energy ratings), HM Land Registry title records (ownership and title number), sold price history (from HMLR Price Paid data), OS AddressBase (address and location), Environment Agency flood risk data, and planning application records from local authorities.

Is UPRN data free to use?

Ordnance Survey released UPRNs and USRNs (Unique Street Reference Numbers) as Open Data in 2020 under the Open Government Licence. This means UPRN data is free to use, share, and build upon. Property Passport UK makes UPRN lookup free for all users.

Can a property have more than one UPRN?

In most cases, each distinct addressable unit has one UPRN. Flats within a building will each have their own UPRN, as will the parent building. If a building is demolished and rebuilt, the new structure receives a new UPRN. Duplicate UPRNs can exist due to historic data issues but are gradually being resolved by Ordnance Survey.

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